Method for making cast stone

Details Method for making cast stone Method for making cast stone

1992-01-31

1993-09-28

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

By reciprocating or vibrating mold

264333, 425150, B28B 108, B28B 300

Patent

active

052484661

ABSTRACT:
Cast stone for architectural use is made by subjecting a mixture of aggregate and Portland cement in a mold to repeated dropping against an anvil, and thereafter applying a vertical pressure to the contents of the mold while applying repeated mechanical blows to a table on which the mold is situated. The process makes it possible to produce a high quality cast stone in 3-4 minutes as compared with the 20 minutes required using prior processes.

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"PVKL Machine" by International Molding Machine Co.

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